HOUSTON — Tropical Storm Harvey made a second landfall just west of Cameron, La., early Wednesday, although any flooding was expected to be nowhere near levels that have devastated this battered city, forecasters said.

The National Hurricane Center said the storm came back on land about 5 miles west of Cameron — and almost 200 miles east of Houston — with maximum sustained winds of 45 mph. Harvey is forecast to drop substantial amounts of rain on Louisiana before moving on to Arkansas, Tennessee and parts of Missouri.

Some areas could see up to 10 inches of rain. And forecasters warned of possible tornadoes across a wide swath of the Southeast as Harvey rolled inland.

The storm was moving away from Texas, but the chaos left behind was far from over. AccuWeather estimated Harvey’s cost at $160 billion, making it the costliest natural disaster in U.S. history.

“Parts of Houston, the United States’ fourth largest city, will be uninhabitable for weeks and possibly months due to … this 1,000-year flood,” AccuWeather president Joel Myers said.

FEMA Administrator Brock Long said 30,000 people were in more than 200 shelters, big and small, across the region. About 1,800 evacuees have been moved to hotels and other longer-term housing options, he said.

In Houston, authorities opened two more megashelters — the arena that houses the NBA Rockets and the stadium home of the NFL Texans — after the convention center quickly became packed with almost 9,000 evacuees.

And Joel Osteen, pastor of the Lakewood megachurch, and his wife opened the doors of his 16,000-seat arena to evacuees. Osteen was engulfed in a social media controversy after the storm first hit, accused of denying shelter to evacuees.

“Victoria and I care deeply about our fellow Houstonians,” Osteen tweeted. “Lakewood’s doors are open and we are receiving anyone who needs shelter.”